Embark on the ultimate "Jalloween" party at the Javelina Jundred, held on October 31, 2026, in the stunning McDowell Mountain Regional Park, just north of Fountain Hills, Arizona. This renowned ultra-running festival offers a challenging and festive experience across 100-mile and 100-kilometer distances, drawing runners to its unique looped course through the Sonoran Desert. The race is famous for its vibrant atmosphere, where costumes are encouraged and "Javelina Jeadquarters" serves as the lively start/finish line and hub of activity.

The Javelina Jundred course is comprised of rolling single track trails, winding past majestic Saguaro cacti, ancient granite boulders, and dry wash-beds. While often considered a fast course for an ultra, with around 7,900 feet of cumulative vertical gain for the 100-mile distance, its mix of hard-packed granite, rocks, and sand, combined with significant sun exposure, presents its own test of endurance. The looped format allows crews excellent access at Javelina Jeadquarters and creates a unique "washing machine" experience where runners frequently see and encourage each other on the course. Expect typical race day conditions with highs around 52F and lows around 36F, and a 20% chance of precipitation, offering crisp running weather for this desert challenge.

Runners will find exceptional support at four aid stations per loop, including the renowned "Jackass Junction," which is known for its party vibe and generous offerings. Aid stations are celebrated for their helpful volunteers and a wide array of provisions, from standard hydration and gels to "real food" like pizza, pumpkin pie, and warm meals, ensuring runners are well-fueled throughout their journey. Beyond the personal challenge, the Javelina Jundred is a highly sought-after Western States 100 Mile Endurance Run qualifier, offering Golden Tickets to top male and female finishers, cementing its place as a premier event in the ultra-running calendar.